The factory rocker panels on a Porsche 997 are functional but boxy. Mach II side skirts swap that bulk for a sleeker, lower-profile design that gives your narrow-body 997 a more aggressive, track-inspired stance.
What are Mach II side skirts?
These are replacement rocker panels with a streamlined Mach II profile. They visually lower and lengthen the side of the car, flowing cleanly from the front fenders to the rear quarters to give the 997 a more planted, purposeful look.
Why polyurethane?
These skirts are molded from flexible, crack-resistant polyurethane. Unlike rigid fiberglass, polyurethane flexes over curbs, driveways, and road debris and returns to its original shape instead of cracking — a big advantage for a part mounted this low on the car. They arrive in a raw finish ready for scuff, prime, and paint.
Fitment
Fits the Porsche 911 997.1 and 997.2 Carrera, Carrera S, Carrera 4, and Carrera 4S (2005–2012) narrow-body models. They do not fit Turbo or wide-body models without modification. Confirm your configuration before ordering.
Installation tips
The skirts use OEM-style mounting points and include hardware. Light trimming or adjustment is sometimes needed for a perfect line, so while a confident DIYer can fit them, professional installation gives the cleanest result and best paint finish.
Styling and performance
Primarily a styling upgrade, the aerodynamic contour also helps guide airflow along the sides of the car, reducing turbulence. Pair them with a front lip and rear diffuser to complete a balanced, track-inspired aero package.
FAQ
Will they crack on speed bumps? Polyurethane flexes and returns to shape, making it far more curb-friendly than fiberglass.
Are they sold as a pair? Yes — left and right, with mounting hardware and an install guide.
Lower your 997’s stance
Give your 997 a sleeker, more aggressive profile. Shop the Porsche 997 Mach II Side Skirts here.